New York

Address: 321 East 43rd St., Apt. 802

Price: $379,000

Square feet: 725

Cost per square foot: $523

This one-bedroom, one-bath prewar apartment is the smallest home in our survey and the most costly in terms of price per square feet. But what a location in the historic Tudor City complex in Manhattan's Midtown East neighborhood. It has southern exposure, high ceilings and wood floors throughout. The kitchen is updated with a quartz composite countertop and standard appliances, including a dishwasher. It's a full-service building with a laundry room, bike room and storage bins in the basement. There's also a doorman, and it's pet-friendly. Maintenance fees are $1,489 per year.